Java Stream API — Even Numbers (Full Screen) Java Stream API — Get Even Numbers Example 1 — Filter even numbers from a list Creates a list, uses Stream to filter evens, and prints them. Copy import java.util.*; import java.util.stream.*; public class EvenNumbersStream { public static void main(String[] args) { // Create a list of numbers List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10); // Use Stream API to filter even numbers List<Integer> evenNumbers = numbers.stream() .filter(n -> n % 2 == 0) .collect(Collectors.toList()); // Print the even numbers System.out.println( "Even numbers: " + evenNumbers); } } Example 2 — Use IntStream.rangeClosed ...
In this C program we will perform Stack operations using Linked List.
input:
The Choice(i.e Push,Pop,Display) & The Number (integers) (i.e. for Push) (15,10,128 etc.)output:
The Operations will be excecuted as choosen by the user.
CODE---->
#include<stdio.h>
#include<stdlib.h>
#include<malloc.h>
typedef struct node{
int data;
struct node *next;
}node;
node *top;
void push(int data)
{
node *head,*afterhead;
head=(node *)malloc(sizeof(node));
if(head==NULL)
{
printf("\nMemory cant be allocated.");
exit(0);
}
head->data=data;
head->next=NULL;
if(top==NULL)
top=head;
else
{
afterhead=top;
top=head;
head->next=afterhead;
}
}
void pop()
{
node *ptr;
if(top==NULL)
{
printf("\nStack Underflow.");
exit(0);
}
else
{
ptr=top;
printf("\n%d is Popped from Stack.",ptr->data);
top=top->next;
free(ptr);
}
}
void display()
{
node *pos;
if(top==NULL)
printf("\nNo element exists.");
else
{
pos=top;
while(pos!=NULL)
{
printf(" %d ",pos->data);
pos=pos->next;
}
}
}
void main()
{
int choice,item;
while(1)
{
printf("\n==========Menu==========\n");
printf("\n1.Push\n2.Pop\n3.Display\n4.Exit");
printf("\n\nEnter Your choice : ");
scanf("%d",&choice);
switch(choice)
{
case 1: printf("\nEnter data : ");
scanf("%d",&item);
push(item);
break;
case 2: pop();
break;
case 3: display();
break;
case 4: exit(0);
break;
default : printf("\nWrong choice.");
}
}
}
Download the C-Program file of this Program.
RESULT :
==========Menu========== 1.Push 2.Pop 3.Display 4.Exit Enter Your choice : 1 Enter data : 10 ==========Menu========== 1.Push 2.Pop 3.Display 4.Exit Enter Your choice : 1 Enter data : 20 ==========Menu========== 1.Push 2.Pop 3.Display 4.Exit Enter Your choice : 1 Enter data : 30 ==========Menu========== 1.Push 2.Pop 3.Display 4.Exit Enter Your choice : 3 30 20 10 ==========Menu========== 1.Push 2.Pop 3.Display 4.Exit Enter Your choice : 2 30 is Popped from Stack. ==========Menu========== 1.Push 2.Pop 3.Display 4.Exit Enter Your choice : 4 -------------------------------- Process exited after 23.15 seconds with return value 0 Press any key to continue . . .
Images for better understanding :
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